Controller-regulator.



PATENTED JAN. 7. 1908.

J. P. DURKIN. CONTROLLER REGULATOR. APPLIOATION FILED AUG. a1. '1907.

W/T/VE'SSES:

/NVE NTOR 4me/ver.

j the movable cam ways.

- COllISeS.

-which may be either a part of the controller UNITED ASTATES PATENT OFFICE.

IJOHN I. D'URKIN, Ol" PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO DURKIN CONTROLIIER HANDLE COMPANY, Ol" PlllLDELllIlA, PENNSYLVANIA, CORPORATION OF PENNSYL- 'VA N l A CON TROLLE R-RE GULATOR.

Speecaton of Letters latent.

Patented Jan. '7, 1908.

Application liled August 3l. 1907. Serial No. 390.876.

To all H-mm i 1f may' concern.' l l Be it known that l, Joux l). DinKiN. a citizen of the lnited Statosyresiding at Philadelphia, in the county ol' lhilzulelphia and State ol' lennsvl f'ania, have invented cer tain lnlprovenients in (ontroller-Regulators, of which the follmving is a specification.

This invention relates to means for regu- 1 lating the operations of electric motor controllers so that the current cannot be turned on too rapidly, and its leading object is to provide an improved construction of simple charac ter whichsecures an interrupted movement in turning on the current, and a free movement in turning it olf.

In its preferred forni, the improvements comprise stationary cani ways and movable cam ways extendingl transversely tov the movement of revolution and engaged by a ball which coacts therewith to control said movement; the stationary cam ways being formed in a ilangc secured to the controller casing and the movable cam ways being formed on a depending part of a cover se cured to the controller shaft.

The characteristic features of the improvements will more fully appear by reference to the following description and the accompanying drawings in illustration thereof.

In the drawings, Figure -1 represents a sectional plan view of the invention, Fig. 2 represents a sectional elevation thereof, Fig. 3 represents a sectional perspective view of the flange with the stationary camways, and Fig. 4 represents a sectional perspective view of the cover having a depending part with l l j l l As shown in the drawings, the part 1,

casing, or a part to be securedthereto, carries the circular flange or ring 2 containing Within it the cam ways 3 and 3 forming a substantially V-shaped path vfor the ball 4. The cover 5, `which en ages the controller shaft 6 and is revolved tlerewith by the handle '7, has the depending flange, ring or body portion 8 revoluble Within the liange 2, the flange 8 having in the outer face thereof the cam Ways 9 and 9 registerable with the respective Ways 3 and 3 and the circular WaysA 10 and 10 which connect the terminal ways 9 and 9 of the oppositely disposed irregular tering ways 3 and 9.

It is to be observed that the ways 3, 9, 9', i

projections 11 and 11 will carry the ball up 60 the way 3 or the way 3 respectively.

l/Vhen the handle is revolved toward the right, the ball 4, which normally lies at the junction of the ways 3 and 3 with the way -1(), is forced by the first projection 11 up- 65 wardly along the intersectmg ways 3 and 9, being caught at the top thereof, at the intersection of the Ways 9 and 9, by the rejection 11. The movement is thus ciecked until, upon relieving the pressure against the handle, the ball drops a ong the now regis- A further movement and relaxation of the handle effects a repetition of the operation, so that the commutator c shaft 6 is given the desired step by step move- 75 ment in turning on the current, through the movement of the irregular or zig-zag parts of the circular way as they are carried past the ball, the movement being without interruption when the ball lies in the tions 10 and 10 of the path. In reversing, to throw ofl the current, a projection 11 carries the ball up to the top of the way 3', having sulhcient depth to permit the ilange S and projections 11 forming parts thereof to S5 clear the ball, whereby the revolution of the shaft in throwing off the current is uninterrupted.

Having described my invention, I claim 1. In a controller regulator, in combination with a revoluble shaft, means having a circular way with irregular courses ext-ending transversely to the directions of revolution, means having intersecting ways adapted for registration with said irregular courses, and

a ball in said Ways.

2. In a controller regulator, in combination With a revoluble shaft, a circular 'way having courses extending transversely to the l() and l0 are of less depth than the diameter 55 plain por- 80 plane thereof, means having an irregular way with courses adapted for registration with said first named courses, and a ball engaged in said ways;

3. In a controller regulator, a revoluble part having a way with intersecting courses extending transversely to the plane oi' revolutlon, astationary part havinga Waywith intersectlng courses respectively adapted for .2 aves-,791

regrstrstton with courses of seid frrst named shaft, a @over fixed to said shat and having Way, and a device adapted to roll in said ade'pend'mg partwth :t peripheral Way there- 15 Ways. in, a fhmge overlapeng Said part and het 'mg 4 In a.l controller regulator, in corhhnaa Way therein, am a ball revohrhle in said tion with a. revohlhle Shaft, e stationary partr Wa s.

having therein a substantially V-she'ped Way vln testmrouy whereof I. have hereunto eet With e course of variable depth, e. member m name this 24th day of August, D. 20

1907, in the presence of the Suhserhiug Witmesses.

J() HN P. DUBKN connected to said Shaft and havmg a depend.- ng part containing a circular Way With courses adapted to 'register with said first\ named courses, and 'a device roh'mgn sad Witnesses:

ROBERT JAMES EARLEY,

5. In' a controller regulator, a revol'ble 

